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diff --git a/doc/log_rotation_fix_size.html b/doc/log_rotation_fix_size.html deleted file mode 100644 index 51edf03..0000000 --- a/doc/log_rotation_fix_size.html +++ /dev/null @@ -1,69 +0,0 @@ -<html><head> -<title>Keep the log file size accurate with log rotation</title> -<meta name="KEYWORDS" content="log rotation, howto, guide, fixed-size log"> -</head> -<body> -<a href="rsyslog_conf_output.html">back</a> - -<h1>Log rotation with rsyslog</h1> - <P><small><i>Written by - Michael Meckelein</i></small></P> -<h2>Situation</h2> - -<p>Your environment does not allow you to store tons of logs? -You have limited disc space available for logging, for example -you want to log to a 124 MB RAM usb stick? Or you do not want to -keep all the logs for months, logs from the last days is sufficient? -Think about log rotation.</p> - -<h2>Log rotation based on a fixed log size</h2> - -<p>This small but hopefully useful article will show you the way -to keep your logs at a given size. The following sample is based on -rsyslog illustrating a simple but effective log rotation with a -maximum size condition.</p> - -<h2>Use Output Channels for fixed-length syslog files</h2> - -<p>Lets assume you do not want to spend more than 100 MB hard -disc space for you logs. With rsyslog you can configure Output -Channels to achieve this. Putting the following directive</p> - -<p><pre> -# start log rotation via outchannel -# outchannel definiation -$outchannel log_rotation,/var/log/log_rotation.log, 52428800,/home/me/./log_rotation_script -# activate the channel and log everything to it -*.* :omfile:$log_rotation -# end log rotation via outchannel -</pre></p> - -<p>to ryslog.conf instruct rsyslog to log everything to the destination file -'/var/log/log_rotation.log' until the give file size of 50 MB is reached. If -the max file size is reached it will perform an action. In our case it executes -the script /home/me/log_rotation_script which contains a single command:</p> - -<p><pre> -mv -f /var/log/log_rotation.log /var/log/log_rotation.log.1 -</p></pre> - -<p>This moves the original log to a kind of backup log file. -After the action was successfully performed rsyslog creates a new /var/log/log_rotation.log -file and fill it up with new logs. So the latest logs are always in log_roatation.log.</p> - -<h2>Conclusion</h2> - -<p>With this approach two files for logging are used, each with a maximum size of 50 MB. So -we can say we have successfully configured a log rotation which satisfies our requirement. -We keep the logs at a fixed-size level of100 MB.</p> -<p>[<a href="manual.html">manual index</a>] -[<a href="rsyslog_conf.html">rsyslog.conf</a>] -[<a href="http://www.rsyslog.com/">rsyslog site</a>]</p> -<p><font size="2">This documentation is part of the -<a href="http://www.rsyslog.com/">rsyslog</a> project.<br> -Copyright © 2008 by <a href="http://www.gerhards.net/rainer">Rainer Gerhards</a> and -<a href="http://www.adiscon.com/">Adiscon</a>. Released under the GNU GPL -version 2 or higher.</font></p> - -</body> -</html> |